I like Nelly's [Ternan] quiet inner strength. I thought there was something about her predicament that I found interesting - that she didn't want to be a floozy mistress, a bit on the side, that she had more self-respect than that.

I think personally it's not good for anyone - I don't think infidelity leads to happiness. It's painful for the person being cheated on, but also for the person who's cheating.

I'm small. I'm petite. But I'm a bit of a fighter inside.

I put every ounce of myself into my work, but also it's important that I don't miss every single wedding of my best friends.

I think Nelly [Ternan] actually has something very conservative about her, and she's very judgmental of (this other character's) situation, and can see that's about to happen to herself. So she judges it even more harshly [because] it's what she fears becoming.

I would describe my look as 'ladylike rock chick.

"The Theory of Everything" is an extraordinary story because [Jane Hawing] was incredibly religious and [Stephen Hawking] was an atheist, so you have this conflict both on a domestic level between a couple in a difficult situation but also this bigger conflict of science versus religion, so it's a really fascinating project.